1983 Mercury 70. SN 9353189
I replaced trigger and stator last summer because they were both out of spec. This cured the problem of not revving past 4000 rpm. Now with less than 20 hours on the engine, the symptoms have returned, and the new trigger is now showing out of spec. What could cause...
1996 25hp Mariner.
Cant find what compression to expect in my manual- the engine turns over far more easily than my 86 evinrude 25hp and im worried the compression is low. (both pull start)
Thanks, peter
1983 Mercury 70 3 cyl. 9353189
I am struggling to line up to TDC, i can just about make out the 0 on the scale on the side of flywheel, but my manual says to set no.1 piston to .491 BTDC with dial gauge then line up flywheel so pointer is in line with that mark. My flywheel is rusted and i cant...
1983 Mercury 70HP Power loss.
Can a faulty switchbox damage trigger or stator? I replaced stator as readings were well out of spec. Trigger read in spec. Full power returned for a couple of trips, then suddennly dropped to half power. New stator still tested good, but trigger now tested well out...
How big and what shape do i need to build a test tank to avoid the prop throwing all the water out? i want to be able to thoroughly test my engine and link and sync it while in the driveway. I was thinking 3 feet long, 1 foot wide and 1 to 2 foot deep, with a lid cut around the leg to try and...
When cold will run up to full speed for about 1 min, then lose power down to about 3000 revs. Let it sit for an hour and it will run flat out again then lose power again.
Things ive done to eliminate:
New fuel pump
New fuel line and bulb
checked fuel tank vent
changed plugs
checked...
Ive removed the 7 bolts and disconnected the gear linkage as per my service manual- apparently the gear box should now split from the exhaust housing. It is loose but seems to be held up by the drive shaft- does this need to be disconnected at the powerhead or are the splines corroded and...
starts and idles fine, will run wot for a few minutes then lose power all the way down to idle, and will stall unless you take it out of gear. when it stalls it will start straight back up, will rev in neutral, idle in gear but give it some revs and it bogs down. seems like it happens once the...
